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Spring 2018, Vol. 26 No. 1

Hong Kong J. Dermatol. Venereol. (2018) 26, 38


Dermato-venereological Quiz

Dermato-venereological Quiz

FC Ip 葉方正

A 9-month-old girl was referred for a scalp naevus since birth. The baby girl was born full-term with an uneventful perinatal course. At birth, the scalp lesion was skin-coloured with no hair growth all along. There was a slight increase in pigmentation gradually and the size of the lesion increased in proportion with the head. Physical examination showed a 6 mm x 4 mm oval patch of alopecia on the right parietal scalp (Figure 1). The patch had a pinkish discolouration with central light blue-grey pigmentation. There were no abnormalities on cutaneous examination of the face, trunk and limbs.

Figure 1

Questions

  1. What other bedside physical examination would help to delineate the lesion?
  2. What could be the findings?
  3. What is the most likely clinical diagnosis?
  4. What is the management and prognosis?